Matter and Energy
Energy is the ability of matter to produce changes. two groups of energy sources are
what is 1.RENEWABLE
2 NON RENEWABLE
steam rising from boiling water is in the state of
what is a GAS
matter that has become something new has made _____ change
what is CHEMICAL CHANGE
Heat added to a liquid increases the energy resulting in the process of _____________
What is Evaporatin
freezing point of water
zero degrees celcius
measred using a scale in Kilograms
What is MASS
most complex state of matter, does not always weigh the same or take up the same amount of space
what is GASES
burnt wood is an example of ________ change
what is CHEMICAL CHANGE
when particles looses energy in the process of changing from a gas to a liquid is called
What is condensation
melting point of pure water is
what is 0 degrees celcius
Is measured in containers, unit used is litres
what is VOLUME
Takes up the same amount of space, does no have a definite shape but has a definite volume and mass.
what is a LIQUID
BUTTER melted on warm toast is has made what type of change
What is PHYSICAL CHANGE
change from solid to gas is called
what is sublimation
ice from the freezer is lower or higher than 00 celcius
what is lower
mass and volumes are used to calculate which property of matter
what is DENSITY
THIS state of matter has a definte shape, mass and volume.
what is a solid
two categories of changes in matter are
what is physical and chemical changes
in the process energy is added to particles, temperature rises, particles speed up
what is melting
water boils at 100 0 celcius. the presence of impurities does what to this temperature
what is raises it
occupies space and is all around us
what is MATTER
Matter that has changes its shape and size has made what type of change
what is PHYSICAL CHANGE
when particles looses energy when particles are loosely packed and become closely/tightly packed
what is freezing
four factors affecting evaporation are
wind, temperature, humidity and surface area